The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 1993
Filed:
Sep. 26, 1990
Applicant:
Inventors:
Edward J Buyalos, Chester, VA (US);
David Pendlebury, Chesterfield, VA (US);
Lon K Bouknight, Richmond, VA (US);
Neil F Blake, Wake, NC (US);
Clarence McKeithan, Jr, Sanford Lee, NC (US);
Assignee:
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
203 18 ; 203 20 ; 203 25 ; 203 93 ; 203 94 ; 203 97 ; 203 98 ; 203D / ; 5283087 ; 528496 ; 568871 ;
Abstract
A method to recycle spent ethylene glycol in a continuous process for the manufacture of polyethylene terephthalate in at least one reactor vessel which includes: